I've not tested it. You will need to access the firewall (iptables) and put this rule.
iptables -A INPUT -p udp --dport YOUR_SERVER_PORT -m string --hex-string "|FF FF FF FF 54 53 6F 75 72 63 65 20 45 6E 67 69 6E 65 20 51 75 65 72 79 00|" --algo bm -j DROP Doc on https://developer.valvesoftware.com/wiki/Server_queries 2012/12/5 Sachin Sud <[email protected]>: > Thanks > How can i block queries of A2A_PING,A2S_INFO,A2S_PLAYER,A2S_RULES > > Need some insight on this. > > Thanks, > Sachin > > On Wed, Dec 5, 2012 at 6:52 PM, Vitor F. - Killall <[email protected]> wrote: > >> Use a firewall to block some >> querys(A2A_PING,A2S_INFO,A2S_PLAYER,A2S_RULES), put a password on the >> server, use sv_steamgroup_exclusive=1, add -nomaster to command line. >> >> I can't imagine a server more restrict than this . >> >> >> >> 2012/12/5 Marco Padovan <[email protected]> >> > >> > on tf2 in the past we could add to the config file: >> > >> > >> > hideserver 1 >> > >> > >> > that will also disable the a2s info replies... is that working on other >> > games too? >> > >> > Il 05/12/2012 11.36, LouLouBizou ha scritto: >> > > simply add -nomaster to command line .... >> > > >> > > 2012/12/5 Drogen Viech <[email protected]> >> > > >> > >> You could block the master servers ips so the server can not list >> > >> itself in the first place - that would help a bit i presume? >> > >> >> > >> 2012/12/5 Bruno Garcia <[email protected]>: >> > >>> I don't think you could HIDE the server ip address and still show up >> in >> > >> the >> > >>> browser. >> > >>> Perhaps there's a way of not being "published" to the browsers. >> > >>> >> > >>> I understand the DDoS attacks, but in the end, you could block them >> > >> calling >> > >>> the ISP, they have the necessary tools for doing so. >> > >>> >> > >>> >> > >>> On Wed, Dec 5, 2012 at 4:01 AM, Sachin Sud <[email protected]> >> wrote: >> > >>> >> > >>>> Hi, >> > >>>> >> > >>>> We want to setup our left4dead2 servers in such a way , so that if a >> > >> player >> > >>>> joins our server and another player wants to see view player info it >> > >> shows >> > >>>> the server info as blank. >> > >>>> It means user can only come to server using ip and port and using >> the >> > >>>> connect command from console. >> > >>>> >> > >>>> We basically want >> > >>>> 1) Server should not appear in server list or favourites (If that is >> > >> poss >> > >>>> isble) >> > >>>> 2) If a user right click on another user , the server info should >> > >> appear as >> > >>>> blank. >> > >>>> >> > >>>> The reason why we want to do because in India there is only 1 >> left4dead2 >> > >>>> server and its so prone to ddos attacks that we cannot even play. >> > >>>> >> > >>>> So we would like to server completely private and hidden as much as >> > >>>> possible. >> > >>>> >> > >>>> Some forums has suggested using a2s info but i could not find >> anything >> > >> for >> > >>>> left4dead2 >> > >>>> >> > >>>> Any help on the same would be great >> > >>>> >> > >>>> We can block any port or do anything in server side to achieve this >> or >> > >> get >> > >>>> this implemented. >> > >>>> >> > >>>> Thanks, >> > >>>> Sachin >> > >>>> _______________________________________________ >> > >>>> To unsubscribe, edit your list preferences, or view the list >> archives, >> > >>>> please visit: >> > >>>> https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlds_linux >> > >>>> >> > >>> _______________________________________________ >> > >>> To unsubscribe, edit your list preferences, or view the list >> archives, >> > >> please visit: >> > >>> https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlds_linux >> > >> _______________________________________________ >> > >> To unsubscribe, edit your list preferences, or view the list archives, >> > >> please visit: >> > >> https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlds_linux >> > >> >> > > _______________________________________________ >> > > To unsubscribe, edit your list preferences, or view the list archives, >> please visit: >> > > https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlds_linux >> > >> > _______________________________________________ >> > To unsubscribe, edit your list preferences, or view the list archives, >> please visit: >> > https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlds_linux >> >> _______________________________________________ >> To unsubscribe, edit your list preferences, or view the list archives, >> please visit: >> https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlds_linux >> > _______________________________________________ > To unsubscribe, edit your list preferences, or view the list archives, please > visit: > https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlds_linux _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlds_linux
